Image Properties with Environmental Factors 
Interim Report of Working Group 3, Commission I 
International Society of Photogrammetry 
Clarice L. Norton, Chairman 
Hill Air Force Base, Utah, U.S.A. 
ABSTRACT 
Cartographic cameras are calibrated under rigidly controlled laboratory 
environments, but acquire imagery under a wide range of vastly different 
conditions. The environments of the aerial survey and the affects they 
have on the image properties of geometry and resolution are discussed.. 
A few "rule of thumb" suggestions for improving the image-properties 
are offered and plans for empirical studies are considered.